EP4077123B1 - Schiffsantriebseinheit und schiff - Google Patents

Schiffsantriebseinheit und schiff Download PDF

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Publication number
EP4077123B1
EP4077123B1 EP19832945.0A EP19832945A EP4077123B1 EP 4077123 B1 EP4077123 B1 EP 4077123B1 EP 19832945 A EP19832945 A EP 19832945A EP 4077123 B1 EP4077123 B1 EP 4077123B1
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EP
European Patent Office
Prior art keywords
propulsion unit
planetary gear
gear set
gearbox
marine propulsion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19832945.0A
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English (en)
French (fr)
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EP4077123A1 (de
Inventor
Lars-Gunnar CARLSSON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo Penta AB
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Volvo Penta AB
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Publication of EP4077123A1 publication Critical patent/EP4077123A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H23/10—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from more than one propulsion power unit
    • B63H23/12—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from more than one propulsion power unit allowing combined use of the propulsion power units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/007—Trolling propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/001—Arrangements, apparatus and methods for handling fluids used in outboard drives
    • B63H20/002—Arrangements, apparatus and methods for handling fluids used in outboard drives for handling lubrication liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/30—Mounting of propulsion plant or unit, e.g. for anti-vibration purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
    • B63H21/386—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like for handling lubrication liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H23/04—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing the main transmitting element, e.g. shaft, being substantially vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H23/10—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from more than one propulsion power unit
    • B63H23/12—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from more than one propulsion power unit allowing combined use of the propulsion power units
    • B63H23/14—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from more than one propulsion power unit allowing combined use of the propulsion power units with unidirectional drive or where reversal is immaterial
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H2020/005—Arrangements of two or more propellers, or the like on single outboard propulsion units
    • B63H2020/006—Arrangements of two or more propellers, or the like on single outboard propulsion units of coaxial type, e.g. of counter-rotative type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H2023/0283—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing using gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
    • B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
    • B63H2023/245—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric with two or more electric motors directly acting on a single drive shaft, e.g. plurality of electric rotors mounted on one common shaft, or plurality of electric motors arranged coaxially one behind the other with rotor shafts coupled together

Definitions

  • the present invention relates to a marine propulsion unit and a marine vessel with such a propulsion unit.
  • Known marine vessels comprising a propulsion unit in the form of a stern drive are usually provided with an internal combustion engine (ICE) arranged within the hull of the vessel. Torque is then transmitted from the ICE to the stern drive via a transmission comprising shafts and gearing in order to drive a set of propellers on the stern drive.
  • ICE internal combustion engine
  • a drive unit such as an ICE or an electric motor
  • the transmission required for such a drive unit within the hull of the vessel can require a significant amount of space.
  • heat from the drive unit must be removed using a cooling system which as a rule employs water drawn in from the ambient marine environment. This often involves drawing in saline water from the sea and pumping it through the coolant system, which can cause problems with corrosion.
  • a vibration generated by rotary components in the drive unit and the transmission requires vibration isolation and dampers to be installed to avoid undesirable vibrations from being transmitted to the hull or other parts of the vessel.
  • the transmission must pass through the transom of the vessel to reach the stern drive and the propellers. This requires a suitable sealing arrangement between an opening in the transom and a rotary transmission shaft to prevent water from leaking through the hull.
  • a possible solution to the above problems can be to provide an azimuthing propulsion unit or pod extending downwards beneath the hull.
  • An example of such an azimuthing pod is shown in US 6 685 516 .
  • the drive unit and its transmission can be mounted within a pod at one end of a leg extending downwards from the hull.
  • this solution entails a significant draft and is mainly suited for larger vessels.
  • the invention provides an improved marine propulsion unit aiming to solve the above-mentioned problems.
  • An object of the invention is to provide a marine propulsion unit for a vessel, which propulsion unit solves the above-mentioned problems.
  • stern drive is defined as an assembly comprising an outdrive having two sub-units.
  • An upper unit contains drive units and a transmission and is enclosed in a stern drive housing.
  • a lower unit contains a vertical driveshaft receiving power from the transmission in the upper unit and a gearbox providing power to a propeller shaft for driving at least one propeller.
  • the component parts of the lower unit are enclosed in a gearbox housing.
  • the upper and lower units are separated by a cavitation plate.
  • a stern drive according to the invention is mounted to the transom of a marine vessel, but differs from a conventional stern drive in that it does not comprise an inboard drive unit.
  • the vessel is steered by pivoting the propulsion unit, or outdrive, relative to the transom.
  • the propulsion unit can be pivoted up for trailer travel and between uses to avoid fouling.
  • the invention relates to a marine propulsion unit comprising a stern drive configured to be mounted to a transom of a marine vessel.
  • the stern drive comprises an upper unit enclosed in a stern drive housing and a lower unit enclosed in a gearbox housing, wherein the gearbox housing contains a gearbox arranged to drive at least one propeller.
  • the propulsion unit further comprises at least two electric motors arranged in the stern drive housing, which electric motors are mounted with vertical output shafts.
  • a planetary gear set is arranged between the at least two electric motors in the stern drive housing and the gearbox in the gearbox housing.
  • a vertical shaft in the gearbox housing is attached to a ring gear of the planetary gear set at its upper end and is connected to the gearbox at its lower end.
  • the axis of the vertical shaft is arranged parallel to the output shafts of the electric motors and the rotatable shafts of the gears making up the planetary gear set.
  • the output shaft of each electric motor is connected to a planetary gear arranged in the planetary gear set to drive the ring gear, which in turn drives the vertical shaft connected to the gearbox.
  • the motors By mounting the electric motors with their rotary axes in a vertical direction and selecting motors having a suitable size, the motors can be fitted within a stern drive housing having the same or approximately the same shape and size as conventional stern drive housings.
  • a further advantage is that the interface for mounting the stern drive to the transom and the connection to its steering gear can be maintained.
  • the cut-out opening and sealing means for a drive shaft from an inboard drive unit can be eliminated.
  • the planetary gear set is arranged in or adjacent a cavitation plate located between the stern drive housing and the gearbox housing.
  • the ring gear is arranged in the cavitation plate.
  • the at least two electric motors are mounted in equidistant, fixed positions around the circumference of a sun gear in the planetary gear set. In this way, two motors will be separated by 180°, three motors by 120°, four motors by 90°, and so on.
  • the planetary gears are supported by the sun gear, which gear is rotatable and also ensures that the motors are rotated at the same speed.
  • the electric motors are mounted in direct contact with the housing of the planetary gear set.
  • the upper unit can be made compact and the output shafts of the motors can be kept short.
  • each planetary gear can be mounted directly to the output shaft of its respective motor.
  • the planetary gear set has a gear ratio of at least 3:1 from the output shafts of the electric motors to the vertical shaft connected to the ring gear.
  • the size of the electric motors should be selected accordingly.
  • One way of achieving this is to use high speed electric motors.
  • a high speed electric motor is defined as a motor operable at speeds up to approximately 10.000 rpm or higher.
  • a suitable maximum rotational speed of the vertical shaft driving the gearbox can be selected between 3.500-4.000 rpm, when it is desirable to use a conventional gearbox for a stern drive normally operated by an ICE.
  • the marine propulsion unit can be provided with a planetary gear set comprising at least two planetary gears.
  • the planetary gear sets can have three or four planetary gears. The maximum number of planetary gears is limited by the space available for electric motors within the stern drive housing.
  • the propulsion unit can be arranged to drive the at least one propeller with at least one electric motor.
  • One such operating condition can be that the demanded or required power output from the propulsion unit can be achieved by operating fewer than the total number of available electric motors.
  • the electric motors can drive the propellers together, independently or in variable combinations in response to different torque and power demands in order to improve the efficiency of the propulsion unit.
  • the effect of the planetary gear set is to allow the use of high speed electric motors with a corresponding reduced output torque. In this way the cost of the propulsion unit is lowered, while the electric motors can be operated in a high-efficiency area.
  • a further operating condition can be a so called limp-home mode the propulsion unit is arranged to drive the at least one propeller when at least one or only one electric motor is operable. This arrangement provides a redundancy for the propulsion unit and ensures that the vessel can be operated even if one or more electric motors are inoperable.
  • the propulsion unit comprises a closed coolant and lubrication circuit for the gearbox, the planetary gear set and each electric motor.
  • the gearbox housing can comprise a reservoir for a liquid lubricant and coolant.
  • the closed coolant and lubrication circuit comprises a pump, a supply conduit connected to conduits for the electric motors and the planetary gear set, and a return conduit connected to the reservoir.
  • the pump is preferably, but not necessarily, located in the reservoir.
  • the invention relates to a marine vessel provided with a marine propulsion unit as described in the above examples.
  • the propulsion unit solves the problem of providing a stern drive with electric propulsion without requiring significant modifications of existing units.
  • the outdrive can be advantageously provided with a stern drive housing having the same or approximately the same shape and size as conventional stern drive housings.
  • the interface for mounting a stern drive and its steering gear connections can be maintained.
  • the inboard drive unit can be eliminated there is no need for an opening through the transom or for an associated sealing means for a drive shaft.
  • a further advantage of the invention is that the provision of a planetary gear set allows relatively small, high speed electric motors to be used while maintaining a sufficient level of torque to the gearbox and propeller/-s.
  • the stern drive can be kept relatively compact.
  • the electric motors can drive the propellers together, independently or in variable combinations in response to different torque and power demands whereby the efficiency of the propulsion unit is improved.
  • the arrangement provides a redundancy for the propulsion unit and ensures that the vessel can be operated even if one or more electric motors are inoperable.
  • FIG 1 shows a side view of a schematically illustrated marine vessel 100 comprising a marine propulsion unit 103 according to the invention.
  • the marine propulsion unit 103 is mounted to a transom 102 on the vessel 100.
  • Electric motors (see Fig.2 ) in the marine propulsion unit 103 are connected to an inboard battery pack 104 via suitable wiring 105.
  • the battery pack 104 is indicated schematically in Figure 1 and is preferably located below the waterline of the vessel hull 101 where it can act as ballast and contribute to the stability of the vessel 100.
  • the marine propulsion unit 103 is controllable by a control means such as a throttle lever 110 located at an operating position.
  • the throttle lever 110 is connected to an electronic control unit (ECU) 111 via suitable wiring 112, which ECU 111 is connected to the battery pack 104 via additional wiring 113.
  • the battery pack also comprises a power electronic controller (PEC) and an electronic controller for calibrating and charging the battery pack.
  • PEC power electronic controller
  • FIG 2 shows a schematic perspective view of a propulsion unit according to the invention.
  • Figure 2 shows a stern drive 200 mounted to a transom 202 of a marine vessel (see Fig.1 ).
  • the stern drive 200 comprises an upper unit enclosed in a stern drive housing 201 and a lower unit enclosed in a gearbox housing 203.
  • the gearbox housing 203 contains a gearbox 211 arranged to drive a pair of counter rotating propellers 204.
  • the propulsion unit in this example comprises three electric motors 205, 206, 207 arranged in the stern drive housing 201, which electric motors 205, 206, 207 are mounted vertically with their output shafts extending downwards in a vertical direction.
  • a planetary gear set 208 is arranged between the three electric motors 205, 206, 207 located within the stern drive housing 201 and the gearbox 211 located within in the gearbox housing 203.
  • a vertical shaft 210 in the gearbox housing 203 is attached to a ring gear (see Figs.3A-3C ) of the planetary gear set 208 at its upper end and is connected to the gearbox 211 at its lower end.
  • the axis of the vertical shaft 210 is arranged parallel to the output shafts of the electric motors 205, 206, 207 and the rotatable shafts of the gears making up the planetary gear set 208.
  • each electric motor 205, 206, 207 is connected to a planetary gear (see Figs.3A-3C ) arranged in the planetary gear set 208 to drive the ring gear, which in turn drives the vertical shaft 210 connected to the gearbox 211.
  • the gearbox 211 comprises bevel gears arranged to drive a first and a second drive shaft 212 and 213, respectively, to drive the pair of counter rotating propellers 204.
  • a planetary gear set according to the invention can be arranged in or adjacent a cavitation plate located between the stern drive housing and the gearbox housing.
  • the ring gear of the planetary gear set 208 is arranged in such a cavitation plate 209, as the cavitation plate itself or the area adjacent the cavitation plate generally has a larger extension in the horizontal plane than the stern drive housing 201 or the gearbox housing 203.
  • the three electric motors 205, 206, 207 are mounted in equidistant, fixed positions around the circumference of a sun gear in the planetary gear set (see Figs.3A-3C ). In this way, the three motors 205, 206, 207 are separated by 120° around the sun gear.
  • the planetary gears are supported by the sun gear, which gear is rotatable and also ensures that the motors 205, 206, 207 are rotated at the same speed.
  • each planetary gear can be mounted directly to the output shaft of its respective motor.
  • Figure 3A-C show schematic plan views of cross-sections through different embodiments of a planetary gear sets for a propulsion unit according to the invention.
  • Figure 3A shows a first planetary gear set 300 arranged in or adjacent a cavitation plate located between a stern drive housing and a gearbox housing (see Fig.2 ).
  • Figure 3A shows a first planetary gear set 300 where the output shafts 303, 304 of two electric motors (not shown) are fixed to a first and a second planetary gear 306 and 307, respectively.
  • the first and second planetary gears 306, 307 are mounted in equidistant, fixed positions separated by 180° around the circumference of a sun gear 305 in the planetary gear set 300.
  • the planetary gears 306, 307 are arranged to drive a ring gear 302, which in turn drives a vertical shaft connected to the gearbox below the planetary gear set (see Fig.2 ). Operation of the electric motors causes a rotation of the first and second planetary gears 306, 307, which in turn drives the ring gear 302.
  • the sun gear 305 mounted on a separate shaft 301 and is freely rotatable about its axis. The sun gear 305 provides support for the first and second planetary gears 306, 307 and assists in synchronizing the speed of the electric motors.
  • Figure 3B shows a second planetary gear set 310 arranged in or adjacent a cavitation plate located between a stern drive housing and a gearbox housing (see Fig.2 ).
  • Figure 3B shows a second planetary gear set 310 where the output shafts 313, 314, 315 of three electric motors (see Fig.2 ) are fixed to a first, a second and a third planetary gear 317, 318 and 319, respectively.
  • the first, second and third planetary gears 317, 318, 319 are mounted in equidistant, fixed positions separated by 120° around the circumference of a sun gear 316 in the planetary gear set 310.
  • the planetary gears 317, 318, 319 are arranged to drive a ring gear 312, which in turn drives a vertical shaft connected to the gearbox below the planetary gear set (see Fig.2 ). Operation of the electric motors causes a rotation of the first, second and third planetary gears 317, 318, 319, which in turn drives the ring gear 312.
  • the sun gear 316 mounted on a separate shaft 311 and is freely rotatable about its axis, as described in the above example.
  • Figure 3C shows a third planetary gear set 320 arranged in or adjacent a cavitation plate located between a stern drive housing and a gearbox housing (see Fig.2 ).
  • Figure 3C shows a third planetary gear set 320 where the output shafts 323, 324, 325, 326 of four electric motors (not shown) are fixed to a first, a second, a third and a fourth planetary gear 328, 329, 330 and 331, respectively.
  • the first, second, third and fourth planetary gears 328, 329, 330, 331 are mounted in equidistant, fixed positions separated by 90° around the circumference of a sun gear 327 in the planetary gear set 320.
  • the planetary gears 328, 329, 330, 331 are arranged to drive a ring gear 322, which in turn drives a vertical shaft connected to the gearbox below the planetary gear set (see Fig.2 ). Operation of the electric motors causes a rotation of the first, second and third planetary gears 328, 329, 330, 331, which in turn drives the ring gear 322.
  • the sun gear 327 mounted on a separate shaft 321 and is freely rotatable about its axis, as described in the above example.
  • the planetary gear sets in the examples described above have a gear ratio of at least 3:1 from the output shafts of the electric motors to the vertical shaft connected to the ring gear.
  • a high speed electric motor is defined as a motor operable at speeds up to about 10.000 rpm or higher.
  • a desirable maximum rotational speed of the vertical shaft driving the gearbox can be selected between 3.500-4.000 rpm.
  • the marine propulsion unit can be provided with a planetary gear set comprising at least two planetary gears, or alternatively three or four planetary gears.
  • the maximum number of planetary gears is limited by the space available for electric motors within the stern drive housing.
  • Figure 4 shows a schematic side view of a coolant and lubricant circuit in a propulsion unit according to the invention.
  • Figure 4 shows a propulsion unit 400 comprising a closed coolant and lubrication circuit for a gearbox 411, 421, 413, a planetary gear set 408 and a pair of electric motors 405, 406.
  • the gearbox 411, 421, 413 are enclosed by a gearbox housing 403 which comprises a reservoir 421 for a liquid lubricant and coolant.
  • the closed coolant and lubrication circuit comprises a pump 420, a supply conduit 422 connected to conduits 423, 424 for cooling the electric motors 405, 406 and a conduit 425 supplying the coolant/lubricant to the planetary gear set 408.
  • a return conduit 426 is connected to the reservoir 421 to return the coolant/lubricant from the planetary gear set 408.
  • the pump 420 is located in the reservoir 421.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Retarders (AREA)

Claims (13)

  1. Schiffsvortriebseinheit, umfassend einen Heckantrieb (200; 400), der konfiguriert ist, um an einem Spiegel (202; 402) montiert zu werden, wobei der Heckantrieb eine obere Einheit, die in einem Heckantriebsgehäuse (201; 401) eingeschlossen ist, und eine untere Einheit umfasst, die in einem Getriebegehäuse (203; 403) eingeschlossen ist; wobei das Getriebegehäuse (203; 403) ein Getriebe (211-213; 411-413) enthält, das angeordnet ist, um mindestens einen Propeller (204; 404) anzutreiben, wobei die Vortriebseinheit ferner umfasst:
    - mindestens zwei Elektromotoren (205, 206, 207; 405, 406), die in dem Heckantriebsgehäuse (201; 401) angeordnet sind, wobei die Elektromotoren mit vertikalen Ausgangswellen montiert sind;
    - einen Planetenradsatz (208; 300; 310; 320; 408), der zwischen den mindestens zwei Elektromotoren und dem Getriebe angeordnet ist, und
    - eine vertikale Welle (210; 410), die an einem Ringrad (302; 312; 322) des Planetenradsatzes an seinem oberen Ende befestigt ist und an seinem unteren Ende mit dem Getriebe verbunden ist;
    wobei die Ausgangswelle jedes Elektromotors mit einem Planetenrad (303, 304; 313, 314, 315; 323, 324, 325, 326) verbunden ist, das in dem Planetenradsatz angeordnet ist, um das Ringrad (302; 312; 322) und die vertikale Welle (210; 410), die mit dem Getriebe verbunden ist, anzutreiben.
  2. Schiffsvortriebseinheit nach Anspruch 1, dadurch gekennzeichnet, dass der Planetenradsatz (208; 408) in oder angrenzend an eine Kavitationsplatte (209; 409) zwischen dem Heckantriebsgehäuse (201; 401) und dem Getriebegehäuse (203; 403) angeordnet ist.
  3. Schiffsvortriebseinheit nach Anspruch 2, dadurch gekennzeichnet, dass das Ringrad (302; 312; 322) in der Kavitationsplatte (209; 409) angeordnet ist.
  4. Schiffsvortriebseinheit nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, dass die Elektromotoren (205, 206, 207; 405, 406) in äquidistanten, festen Positionen um den Umfang eines drehbaren Sonnenrads (301; 311; 321) herum montiert sind.
  5. Schiffsvortriebseinheit nach Anspruch 4, dadurch gekennzeichnet, dass die Planetenräder (303, 304; 313, 314, 315; 323, 324, 325, 326) durch ein drehbares Sonnenrad (301; 311; 321) getragen werden.
  6. Schiffsvortriebseinheit nach einem der Ansprüche 1 bis 5,
    dadurch gekennzeichnet, dass die Elektromotoren (205, 206, 207; 405, 406) in direktem Kontakt mit einem Gehäuse für den Planetenradsatz (208; 408) montiert sind.
  7. Schiffsvortriebseinheit nach einem der Ansprüche 1 bis 6,
    dadurch gekennzeichnet, dass der Planetenradsatz (310) ein Übersetzungsverhältnis von mindestens 3 : 1 aufweist.
  8. Schiffsvortriebseinheit nach einem der Ansprüche 1 bis 7,
    dadurch gekennzeichnet, dass der Planetenradsatz (310) drei Planetenräder (313, 314, 315) umfasst.
  9. Schiffsvortriebseinheit nach einem der Ansprüche 1 bis 7,
    dadurch gekennzeichnet, dass der Planetenradsatz (320) vier Planetenräder (323, 324, 325, 326) umfasst.
  10. Schiffsvortriebseinheit nach einem der Ansprüche 1 bis 9,
    dadurch gekennzeichnet, dass die Vortriebseinheit angeordnet ist, um den mindestens einen Propeller mit mindestens einem Elektromotor anzutreiben.
  11. Schiffsvortriebseinheit nach einem der Ansprüche 1 bis 10,
    dadurch gekennzeichnet, dass die Vortriebseinheit einen geschlossenen Kühlmittel- und Schmierkreislauf (420, 422, 423, 424, 425) für das Getriebe (411-413), den Planetenradsatz (408) und jeden Elektromotor (405, 406) umfasst.
  12. Schiffsvortriebseinheit nach Anspruch 11,
    dadurch gekennzeichnet, dass das Getriebegehäuse (403) ein Reservoir (421) für ein flüssiges Schmiermittel und Kühlmittel umfasst.
  13. Schiffsvortriebseinheit nach Anspruch 12, dadurch gekennzeichnet, dass der geschlossene Kühlmittel- und Schmierkreislauf eine Pumpe (420), eine Zuführleitung (422), die mit den Elektromotoren und dem Planetenradsatz verbunden ist, und eine Rückführleitung (425) umfasst, die mit dem Reservoir (421) verbunden ist.
EP19832945.0A 2019-12-20 2019-12-20 Schiffsantriebseinheit und schiff Active EP4077123B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2019/086665 WO2021121623A1 (en) 2019-12-20 2019-12-20 Marine propulsion unit and marine vessel

Publications (2)

Publication Number Publication Date
EP4077123A1 EP4077123A1 (de) 2022-10-26
EP4077123B1 true EP4077123B1 (de) 2023-09-13

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EP19832945.0A Active EP4077123B1 (de) 2019-12-20 2019-12-20 Schiffsantriebseinheit und schiff

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US (1) US20230036549A1 (de)
EP (1) EP4077123B1 (de)
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WO (1) WO2021121623A1 (de)

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EP4116183A1 (de) * 2021-07-08 2023-01-11 Volvo Penta Corporation Schiffsantriebseinheit und schiff
GB2612964A (en) * 2021-11-11 2023-05-24 Saietta Group PLC An outboard for watercraft
EP4180321A1 (de) * 2021-11-11 2023-05-17 Volvo Penta Corporation Schiffsantriebseinheit mit geschlossenem kühlkreislauf
WO2024052111A1 (en) * 2022-09-06 2024-03-14 Volvo Penta Corporation A marine drive unit with a planetary gear arrangement

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JP2003011889A (ja) 2001-06-29 2003-01-15 Mitsubishi Heavy Ind Ltd アジマス推進器
JP4337522B2 (ja) * 2003-11-26 2009-09-30 スズキ株式会社 電動式船外機
JP4193683B2 (ja) * 2003-12-03 2008-12-10 スズキ株式会社 電動式船外機
JP2012061939A (ja) * 2010-09-15 2012-03-29 Mitsubishi Heavy Ind Ltd 舶用推進装置
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EP3225533A1 (de) * 2016-03-31 2017-10-04 VOLTA BOATS GmbH Propellersystem für ein wasserfahrzeug
CN106516064B (zh) * 2016-10-26 2020-01-21 广东逸动科技有限公司 船用推进器

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EP4077123A1 (de) 2022-10-26
US20230036549A1 (en) 2023-02-02
WO2021121623A1 (en) 2021-06-24
CN114829249A (zh) 2022-07-29

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